Performed AC/furnace maintenance on 2020 Lennox systems. Perform safety inspection on heater. temperature rise are is at proper level. 5 inch Merv 11 filter is heavily plugged up in restricted recommend this is swapped out immediately client says that they are ordering one off of the Internet. Performed AC maintenance. Clean the condenser coil due to high amounts of debris building up. This needs to be done once a year just before the summer to ensure proper efficiency and maintain warranties on Lennox unit. Refrigerant levels are in range. Compressor and fan Are pulling the proper amperage. At this time system is in great condition and recommend to keep this unit at a standard Maintenance is done twice a year to get the longest life out of it. Client stated that his wife is working at the moment and when she gets home he will go over maintenance plan and it’s about a few days to think about. Left maintenance program brochure It will be following up soon. Upon departure System Is ful